Ключевые слова: abstract, aggregate, architectural, architecture, backdrop, background, closeup, coarse, concrete, concrete wall, design, detail, exposed aggregate concrete, exposed aggregate concrete slab, exterior wall, facade, gravel, gray, material, mosaic, old, pattern, patterned, pebble, rampart, relief, rough, slab, stone, structure, surface, texture, textured, uneven, washed concrete, washed concrete slab,